20 ore 1 min, 28 dic 1973 anni - Galvin says that the greatest success of the ESA—signed into law by President Richard Nixon on December 28, 1973—is that "no species has gone extinct after being listed." It's a fraction of the hundreds of species whose populations have increased because of the Endangered Species Act (ESA).
Descrizione:
Endangered Species ActAggiunto al nastro di tempo:
Data:
20 ore 1 min, 28 dic 1973 anni
Adesso
~ 50 years ago
